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# Calculation For Condensing Unit In Cold Room

May 06, 2017

Cold storage matching

First, the selection of cooling fan, per cubic meter by W0=75W/m3

1, if V (cold storage volume) 30m3, open the door more frequent cold storage, such as fresh meat, then multiplied by A=1.2

2, if < V < 30m3; 100m3; cold storage, frequent open times, such as meat library by coefficient A=1.1

3, if V = 100m3; cold storage, frequent open times, such as meat library, by 4 if the coefficient A=1.0 for a single cold storage, by coefficient B=1.1. According to the W=A*B*W0 (W) for the air cooler, the cold air blower is selected

Secondly, matching units, per cubic meter by Q0=65W/m3

1, if V (cold storage volume) 30m3, open the door more frequent cold storage, such as fresh meat, then multiplied by A=1.2

2, if < V < 30m3; 100m3; cold storage, frequent open times, such as meat library by coefficient A=1.1

3, if V = 100m3; cold storage, frequent open times, such as meat library by coefficient A=1.0

4, if for a single cold storage, then multiplied by the coefficient B=1.1 final unit selection according to Q=A*B*Q0 (Q for the unit cooling capacity), the unit and the cold air machine matching according to the -10oC evaporation temperature calculation.

Freezer matching

First, the selection of cooling fan, per cubic meter by W0=70W/m3

1, if V (cold storage volume) 30m3, open the door more frequent cold storage, such as fresh meat, then multiplied by A=1.2

2, if 30m3 < V < 100m3; cold storage; frequent open times, such as meat base, by coefficient A=1.1 3 if V is greater than or equal to 100 m3

3, open the door more frequent cold storage, such as fresh meat, then multiplied by A=1.0

4, if for a single frozen library, then multiplied by the coefficient of B=1.1 final cold air machine selection according to W=A*B*W0 (W for the air cooler heat load)

Secondly, when the cold storage and low temperature cabinet sharing unit, the unit and the cold air machine matching according to the -35oC evaporation temperature calculation. When the cold storage is separated from the low temperature cabinet, the matching between the unit and the air cooler is calculated according to the -30oC evaporation temperature

Machining load matching

First, the selection of cooling fan, per cubic meter by W0=110W/ M3

1, if the V (processing volume) (50m3), the multiplication coefficient A=1.1

2, if V = 50m3; by coefficient A=1.0 final cooling fan selection according to W=A*W0 (W is the heat load of air cooler)

Secondly, matching units, per cubic meter by Q0=55W/m3

1, if the V (processing volume) (50m3), the multiplication coefficient A=1.1

2, if V = 50m3, A=1.0; by the final selection unit according to the Q=A*Q0 coefficient (Q refrigerating capacity)

Thirdly, when the processing room and the middle temperature cabinet share the unit, the unit and the cold air machine match according to the -10. When the processing room is separated from the medium temperature cabinet, the matching of the unit and the air cooler is calculated according to the evaporation temperature of 0 degrees centigrade   